Home / 19,143.48-26,431.02-14,108.28

Finding the Fourth Proportional to 19,143.48, 26,431.02 and 14,108.28

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Solution

The fourth proportional to 19,143.48, 26,431.02 and 14,108.28 is: 19,479.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.48 : 26,431.02 = 14,108.28 : x
  2. Step 2: Convert to fraction form
    19,143.48/26,431.02 = 14,108.28/x
  3. Step 3: Cross multiply
    19,143.48x = 26,431.02 × 14,108.28
  4. Step 4: Simplify right side
    19,143.48x = 372,896,230.85
  5. Step 5: Solve for x
    x = 372,896,230.85/19,143.48
  6. Step 6: Final answer
    x = 19,479.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.